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  2. Polar ecology - Wikipedia

    en.wikipedia.org/wiki/Polar_ecology

    Polar ecology is the relationship between plants and animals in a polar environment. Polar environments are in the Arctic and Antarctic regions. Arctic regions are in the Northern Hemisphere , and it contains land and the islands that surrounds it.

  3. Permafrost - Wikipedia

    en.wikipedia.org/wiki/Permafrost

    Permafrost temperature profile. Permafrost occupies the middle zone, with the active layer above it, while geothermal activity keeps the lowest layer above freezing. The vertical 0 °C or 32 °F line denotes the average annual temperature that is crucial for the upper and lower limit of the permafrost zone, while the red lines represent seasonal temperature changes and seasonal temperature ...

  4. Polar regions of Earth - Wikipedia

    en.wikipedia.org/wiki/Polar_regions_of_Earth

    Polar regions receive less intense solar radiation than the other parts of Earth because the Sun's energy arrives at an oblique angle, spreading over a larger area, being less concentrated, and also travels a longer distance through the Earth's atmosphere in which it may be absorbed, scattered or reflected, which is the same thing that causes ...

  5. Climate change in the Arctic - Wikipedia

    en.wikipedia.org/wiki/Climate_change_in_the_Arctic

    Natural life in the Arctic is affected greatly. As the tundra warms, its soil becomes more hospitable to earthworms and larger plants, [7] and the boreal forests spread to the north - yet this also makes the landscape more prone to wildfires, which take longer to recover from than in the other regions.

  6. Barren vegetation - Wikipedia

    en.wikipedia.org/wiki/Barren_vegetation

    Regions on the Earth’s surface where soils are dominating the ecosystems with little to no plant cover are often referred to as “Barren”. These places are areas like deserts, Polar Regions, areas of high elevation, and zones of glacier retreat. For barren zones that are situated in mountain ranges, they are often called the "Subnival Zone ...

  7. Polar desert - Wikipedia

    en.wikipedia.org/wiki/Polar_desert

    Polar deserts are the regions of Earth that fall under an ice cap climate (EF under the Köppen classification). Despite rainfall totals low enough to normally classify as a desert , polar deserts are distinguished from true deserts ( BWh or BWk under the Köppen classification) by low annual temperatures and evapotranspiration .

  8. What you need to know about the polar vortex

    www.aol.com/weather/heres-know-polar-vortex...

    " The polar vortex is defined as a mass of cold air that is tightly bound to polar regions by strong counterclockwise winds known as the polar jet stream," Thornton explained.

  9. Arctic vegetation - Wikipedia

    en.wikipedia.org/wiki/Arctic_vegetation

    Arctic vegetation is largely controlled by the mean temperature in July, the warmest month. Arctic vegetation occurs in the tundra climate, where trees cannot grow.Tundra climate has two boundaries: the snow line, where permanent year-round snow and ice are on the ground, and the tree line, where the climate becomes warm enough for trees to grow. [7]